CN114294600A - Heat dissipation plate and street lamp with good heat dissipation - Google Patents
Heat dissipation plate and street lamp with good heat dissipation Download PDFInfo
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- CN114294600A CN114294600A CN202210027394.4A CN202210027394A CN114294600A CN 114294600 A CN114294600 A CN 114294600A CN 202210027394 A CN202210027394 A CN 202210027394A CN 114294600 A CN114294600 A CN 114294600A
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Abstract
The invention belongs to the technical field of lamp illumination, and relates to a heat dissipation plate and a street lamp with good heat dissipation, wherein the heat dissipation plate is provided with a heat dissipation fin, and the heat dissipation fin comprises a medium storage area, an evaporation area, a condensation area and a reflux area; the medium storage area is used for storing a heat-conducting medium and enabling the heat-conducting medium to absorb heat and vaporize in the medium storage area, the evaporation area is used for communicating the medium storage area with the condensation area, the condensation area is used for receiving the vaporized heat-conducting medium and condensing and liquefying the vaporized heat-conducting medium, and the reflux area is used for receiving the liquefied heat-conducting medium and refluxing the liquefied heat-conducting medium to the medium storage area so as to enable the heat-conducting medium to complete one-time large circulation in the radiating fin; the cross section structures of the circulation areas of the heat-conducting medium in the medium storage area, the evaporation area, the condensation area and the reflux area are all net structures; the LED street lamp has the advantages that the heat transfer and heat dissipation performance of the heat dissipation plate is greatly improved, the junction temperature of the integrated light source chip is reduced, the light attenuation of the street lamp is delayed, and the service life of the street lamp is prolonged.
Description
Technical Field
The invention relates to the technical field of lamp illumination, in particular to a heat dissipation plate and a street lamp with good heat dissipation.
Background
COB light source is the integrated area source technique of high light efficiency with the direct mirror surface metal substrate of pasting the LED chip on high reflectance, and the COB light source is the integrated area source of high power, because its process is simple, with low costs, so by wide application in the high-pole lamp field. However, when working for a long time, the COB light source generates considerable heat, and if the heat cannot be discharged in time, the service life of the COB light source, that is, the service life of the high-pole lamp, is directly affected.
The conventional street lamp radiates a COB light source through an aluminum-based radiator, but the aluminum-based radiator is large in size, heavy in mass and poor in heat conduction and radiating effects.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the invention provides a heat dissipation plate and a street lamp with good heat dissipation, which can efficiently dissipate heat of a COB light source, and solves the technical problem of poor heat conduction and heat dissipation effects of the existing street lamp.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
in a first aspect, in the heat dissipation plate provided in the embodiments of the present invention, a heat dissipation plate is provided with a heat dissipation fin, and the heat dissipation fin includes a medium storage area, an evaporation area, a condensation area, and a reflux area; the medium storage area is used for storing a heat-conducting medium and enabling the heat-conducting medium to absorb heat and vaporize in the medium storage area, the evaporation area is used for communicating the medium storage area with the condensation area, the condensation area is used for receiving the vaporized heat-conducting medium and condensing and liquefying the vaporized heat-conducting medium, and the reflux area is used for receiving the liquefied heat-conducting medium and refluxing the liquefied heat-conducting medium to the medium storage area so as to enable the heat-conducting medium to complete one-time large circulation in the radiating fin; the cross-sectional structures of the circulation areas of the heat-conducting medium in the medium storage area, the evaporation area, the condensation area and the return area are all net-shaped structures.
The radiating plate is provided with the radiating fin which is divided into a medium storage area, an evaporation area, a condensation area and a reflux area, a heat-conducting medium is filled in the medium storage area, the liquid heat-conducting medium absorbs heat generated by the heating part to vaporize, a large amount of steam is formed in the evaporation area, the steam enters the condensation area to be condensed and liquefied, the liquefied heat-conducting medium flows into the reflux area and returns to the medium storage area, a complete large cycle is completed, the cycle is repeated, the large cycle radiation can be automatically carried out only by the temperature difference in the radiating fin, and the radiating fin is energy-saving and environment-friendly.
Optionally, at least one group of connecting channels is arranged between the evaporation area and the reflux area from top to bottom, the heat-conducting medium vaporized in the evaporation area enters the reflux area through the connecting channels for condensation and liquefaction and then flows back to the medium storage area, so that the heat-conducting medium completes one-time intermediate-level circulation, a shorter circulation path is provided for the heat-conducting medium, the condensation of the heat-conducting medium is accelerated, and the heat dissipation is fast.
Optionally, each group of connecting channels is arranged along the horizontal direction, or is arranged obliquely, and one end close to the backflow area is positioned above the other end; each group of connecting channels comprises a condensing channel and an evaporating channel positioned below the condensing channel, and the evaporating channels of the upper group of connecting channels are communicated with the condensing channels of the lower group of connecting channels to form a circulating branch, so that the heat-conducting medium completes one small circulation in the circulating branch.
Optionally, the space between the condensing channel and the evaporating channel of each set of connecting channels is smaller than the space between the evaporating channel of the previous set of connecting channels and the condensing channel of the next set of connecting channels.
Optionally, the medium storage area is located at the bottom of the heat dissipation plate, the evaporation area is located above the medium storage area, the condensation area is located at the top of the heat dissipation plate, the medium storage area is communicated with the middle of the condensation area through the evaporation area, and the two ends of the medium storage area and the two ends of the condensation area are communicated through the two backflow areas respectively.
Optionally, the heat dissipation plate is provided with two layers, heat dissipation fins are arranged between the two layers of the heat dissipation plate, and at least one surface of the heat dissipation plate is a plane, so that the COB light source assembly is convenient to mount.
Optionally, the front surface and the back surface of the heat dissipation plate are both sprayed with graphite oil, so that the heat dissipation performance of the heat dissipation plate is greatly improved.
On the other hand, the embodiment of the invention provides a street lamp with good heat dissipation performance, which comprises a cover body, a power supply assembly, a COB light source assembly and a heat dissipation plate; the lid is installed in the inboard of heating panel, and both constitute the casing of street lamp, and COB light source subassembly sets up in the outside of heating panel, and power supply module sets up in the casing and is connected with COB light source subassembly electricity.
Optionally, the COB light source subassembly sets up in the bottom of heating panel, and corresponds with the position of the medium storage area of heating panel, has guaranteed the radiating effect of heating panel.
Preferably, the cover body is provided with the ventilation and heat dissipation holes, so that heat in the street lamp can be dissipated to the outside air from the ventilation and heat dissipation holes.
(III) advantageous effects
The invention has the beneficial effects that: compared with the prior art, the heat dissipation plate and the street lamp with good heat dissipation have the following advantages:
1. the heat radiating fin is provided with a medium storage area, an evaporation area, a condensation area and a reflux area, a heat-conducting medium for heat transfer is filled in the medium storage area, the liquid heat-conducting medium absorbs heat generated by the heating element and is vaporized, a large amount of steam is formed in the evaporation area, the steam enters the condensation area to be condensed and liquefied, the liquefied heat-conducting medium flows into the reflux area and returns to the medium storage area, and a complete large cycle is completed in a cycle, so that the heat generated by the heating element can be quickly conducted, the heat is transferred to the outside, the heat radiating performance of the heat radiating fin is improved, the junction temperature of an integrated light source chip is reduced, and the service life of the street lamp is prolonged; and the heat dissipation can be carried out automatically only by the temperature difference in the heat dissipation fins, so that the energy is saved and the environment is protected.
2. A connecting channel is arranged between the evaporation area and the reflux area of the radiating fin, a shorter circulating path is provided for the heat-conducting medium, the heat-conducting medium can be subjected to intermediate-level circulation, condensation of the heat-conducting medium is accelerated, and heat dissipation is quicker.
3. Each group of connecting channels comprises a condensing channel and an evaporating channel, the evaporating channels of the upper group of connecting channels are communicated with the condensing channels of the lower group of connecting channels to form a circulating branch, namely, a small circulation is formed on the basis of a large circulation and a medium circulation, a shortest circulating path is provided for a heat-conducting medium, and heat transfer between an evaporating area and a reflux area is accelerated. The radiating fins capable of simultaneously performing large circulation, medium circulation and small circulation form a complete circulation system, and have the advantages of higher working stability, difficulty in blocking a pipeline, higher heat conduction speed and further improvement of the heat radiation performance of the radiating plate.
4. Spraying graphite oil on the surface of the heating panel, being provided with ventilative louvre on the lid, with COB light source subassembly setting in the heating panel bottom, further promote the heat dispersion of heating panel.
5. The street lamp with good heat dissipation comprises the cover body, the power supply assembly, the controller, the heat dissipation plate and the COB light source assembly, and is simple in structure, low in production cost, small and portable in whole and convenient to transport and install.
Drawings
Fig. 1 is one of three-dimensional schematic views of a heat dissipation plate and a street lamp with good heat dissipation according to an embodiment of the invention;
fig. 2 is a second perspective view of the heat dissipation plate and the street lamp with good heat dissipation according to the embodiment of the invention;
FIG. 3 is an exploded view of a heat sink and a street lamp with good heat dissipation according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a heat sink plate and a street lamp with good heat dissipation according to an embodiment of the present invention;
fig. 5 is an enlarged schematic view of a point a in fig. 4.
[ description of reference ]
1: a cover body; 11: ventilating and radiating holes;
2: a power supply component; 21: a power supply body; 22: mounting a plate;
3: a controller;
4: hooping;
5: a heat dissipation plate; 51: a heat sink; 511: a media storage area; 512: an evaporation zone; 513: a condensation zone; 514: a reflux zone; 52: a connecting channel; 521: a condensing channel; 522: an evaporation channel;
6: a COB light source assembly; 61: LED lamp beads; 62: a silica gel pad; 63: a lamp bead pressing plate; 64: an optical lens; 65: a waterproof silica gel ring; 66: a lens pressing block;
7: and a plunger.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. In this specification, the terms "upper" and "lower" are used with reference to the orientation of fig. 1, the direction of the heat dissipation plate 5 is the "front side", the direction of the cover 1 is the "back side", and the anchor ear 4 is provided at the "bottom" of the heat dissipation plate 5.
The heat dissipation plate and the street lamp with good heat dissipation provided by the invention solve the technical problem that the heat dissipation of the existing street lamp is slow, wherein the heat dissipation plate is provided with a heat dissipation fin, and the heat dissipation fin comprises a medium storage area, an evaporation area, a condensation area and a reflux area; the medium storage area is used for storing a heat-conducting medium and enabling the heat-conducting medium to absorb heat and vaporize in the medium storage area, the evaporation area is used for communicating the medium storage area with the condensation area, the condensation area is used for receiving the vaporized heat-conducting medium and condensing and liquefying the vaporized heat-conducting medium, and the reflux area is used for receiving the liquefied heat-conducting medium and refluxing the liquefied heat-conducting medium to the medium storage area so as to enable the heat-conducting medium to complete one-time large circulation in the radiating fin; the cross section structures of the circulation areas of the heat-conducting medium in the medium storage area, the evaporation area, the condensation area and the reflux area are all net structures; the heat dissipation plate provided by the invention improves the heat dissipation performance of the heat dissipation plate, reduces the junction temperature of the integrated light source chip, delays the light attenuation of the street lamp and prolongs the service life of the street lamp.
In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In a first aspect, an embodiment of the present invention provides a heat dissipation plate.
Referring to fig. 3 and 4, the heat dissipation plate 5 has two layers, which are 1 series aluminum material and 6 series aluminum material, respectively, wherein the heat dissipation plate 51 is disposed on one aluminum plate, and the two aluminum plates are bonded together by hot pressing, so that the heat dissipation plate 51 is located between the two aluminum plates, and at least one surface of the heat dissipation plate 5 is a plane, thereby facilitating installation of the heating element. The heat dissipation fins 51 are arranged between the two layers of aluminum plates, so that the contact area between the heat dissipation plate 5 and the heat dissipation fins 51 is enlarged, and the heat dissipation speed of the heat dissipation plate 5 is improved. The front and the back of the heat dissipation plate 5 are both coated with graphite oil, so that the heat dissipation performance of the heat dissipation plate 5 is greatly improved. The heat sink 5 may be made of a plate material having good heat dissipation properties.
The heat sink 51 comprises a medium storage region 511, an evaporation region 512, a condensation region 513 and a reflux region 514; the heat-conducting medium is poured into the heat radiating fins 51, the cross-sectional structures of the flow areas of the heat-conducting medium are all net-shaped structures, the heat radiating area is larger, and the heat radiating capacity of the heat radiating fins 51 is stronger. The pouring opening of the heat sink 51 is closed after the completion of the pouring operation. The medium storage area 511 is located at the bottom of the heat dissipation plate 5, the evaporation area 512 is located in the middle of the heat dissipation plate 5, the condensation area 513 is located at the top of the heat dissipation plate 5, two backflow areas 514 are arranged, the two backflow areas 514 are arranged below two ends of the condensation area 513 and are located on two sides of the evaporation area 512 respectively, the middle portions of the medium storage area 511 and the condensation area 513 are communicated together through the evaporation area 512, and two ends of the medium storage area 511 and two ends of the condensation area 513 are communicated through the two backflow areas 514 respectively. The medium storage area 511 is used for storing a heat-conducting medium, the heat-conducting medium absorbs heat and vaporizes in the medium storage area 511, the evaporation area 512 is used for communicating the medium storage area 511 with the condensation area 513, the vaporized heat-conducting medium enters the condensation area 513 through the evaporation area 512, the condensation area 513 is used for receiving the vaporized heat-conducting medium and condensing and liquefying the vaporized heat-conducting medium, and the reflux area 514 is used for receiving the liquid heat-conducting medium in the condensation area 513 and refluxing the liquid heat-conducting medium to the medium storage area 511; therefore, the heat transfer medium completes a complete large cycle including evaporation, condensation, and reflow processes in the heat sink 51; only by the temperature difference in the radiating fins 51, the heat conducting medium can automatically and continuously perform large-cycle heat dissipation, so that the heat dissipation performance of the radiating plate 5 is greatly improved, and the radiating device is more energy-saving and environment-friendly.
The medium storage area 511 is arranged, the heat-conducting medium is condensed and flows back to the medium storage area 511, and then is evaporated into the evaporation area 512, so that the dry burning phenomenon of the heat radiating fin 51 can be prevented, and the working performance of the heat radiating fin 51 is more reliable.
In practical application, in order to accelerate heat dissipation, a plurality of groups of connecting channels 52 are arranged between the evaporation area 512 and the return area 514 from top to bottom, and the vaporized heat-conducting medium directly enters the return area 514 from the connecting channels 52 to be condensed and flows back to the medium storage area 511, so that a middle-stage circulation is completed. The connecting channel 52 is arranged to provide a shorter circulating heat dissipation path for the heat-conducting medium, so that condensation of the heat-conducting medium is accelerated, and heat dissipation is fast.
The heat-conducting medium carries out the major cycle and the intermediate cycle at fin 51, and the constant heat absorption vaporization and the liquefaction are exothermic, and the heat that will generate heat the piece and produce conducts the heating panel 5 on and with the heat give off to the external world, consequently, fin 51 can heat conduction fast, has promoted the radiating rate of heating panel 5 by a wide margin, and its heat dispersion is more excellent.
Referring to fig. 4 and 5, each group of the connecting channels 52 is arranged along the horizontal direction and includes a condensing channel 521 and an evaporating channel 522 arranged right below the condensing channel 521, the evaporating channel 522 of the upper group of the connecting channels 52 is communicated with the condensing channel 521 of the lower group of the connecting channels 52 to form a circulation branch, the vaporous heat-conducting medium in the evaporating area 512 enters the evaporating channel 522 to complete a small circulation in the circulation branch, the small circulation provides the shortest circulation path for the heat-conducting medium, the area surrounded by the small circulation forms a plurality of mutually independent heat dissipation centers, and the evaporating area 512 and the return area 514 perform heat exchange around the heat dissipation centers, so that the heat dissipation of the heat dissipation fins 51 becomes more dispersed, and the heat dissipation efficiency is higher.
Further, the connecting passage 52 arranged in the horizontal direction is changed to be arranged obliquely with one end near the return flow region 514 at an upper position of the other end. Therefore, when the circulation is small, the liquid heat transfer medium in the return region 514 can flow into the evaporation region 512 along the condensation channel 521 in the circulation branch, and the heat exchange speed between the evaporation region 512 and the return region 514 is greatly improved.
It is to be noted that the space between the condensation passages 521 and the evaporation passages 522 of each set of the connection passages 52 is smaller than the space between the evaporation passages 522 of the previous set of the connection passages 52 and the condensation passages 521 of the next set of the connection passages 52.
Under the effect of the temperature difference, the large, medium and small cycles in the fin 51 will be continuously performed. It should be noted that, because the large cycle, the middle cycle and the small cycle are performed simultaneously, each part of the heat dissipation plate 51 is utilized fully, the working efficiency of the heat dissipation plate 51 is greatly improved, the heat dissipation performance is good, and the heat generated by the heat generating component can be quickly conducted to the heat dissipation plate 5. The heat dissipation plate 51 comprises a large-circulation heat dissipation plate, a middle-stage circulation heat dissipation plate and a small-circulation heat dissipation plate, a complete circulation system is formed, the work stability is higher, pipelines are not easy to block, the problem that the circulation reflux of a heat conduction medium is influenced by the blocking of individual pipelines is solved, the heat conduction speed is higher, and the heat dissipation performance of the heat dissipation plate 5 is further improved.
On the other hand, as can be seen from fig. 1 to 3, the street lamp with good heat dissipation according to the embodiment of the present invention includes a cover 1, a power module 2, a controller 3, a heat dissipation plate 5, and a COB light source module 6.
Referring to fig. 2, the cover 1 and the heat radiating plate 5 are bolted together to form a housing. Wherein, lid 1 is fixed at the back of heating panel 5, is provided with ventilative louvre 11 on it, and the produced heat of COB light source subassembly 6 of being convenient for gives off the outside air from ventilative louvre 11, and lid 1 can choose the good material of heat conduction heat dissipation for use, like aluminum product etc. heat on the heating panel 5 can be conducted lid 1 on, further increases radiating area.
As can be seen from fig. 1 and 3, the COB light source assembly 6 is disposed on the front surface of the heat sink 5, and is connected to the heat sink 5 by bolts. In order to improve the heat dissipation effect of the heat dissipation plate 5, the COB light source assembly 6 is disposed at the bottom of the front surface of the heat dissipation plate 5 and corresponds to the medium storage region 511 of the heat dissipation plate 5. Furthermore, a plurality of groups of radiating fins can be arranged on the back surface of the radiating plate 5, and the radiating fins are fixed on the radiating plate 5 and are abutted against the cover body 1, so that the heat conduction and radiating area is increased.
Wherein, COB light source subassembly 6 includes LED lamp pearl 61, silica gel pad 62, lamp pearl clamp plate 63, optical lens 64, waterproof silica gel circle 65 and lens briquetting 66. The lamp bead pressing plate 63 fixes the LED lamp beads 61 on the front face of the heat dissipation plate 5 through the silica gel pad 62, the optical lens 64 is used for covering the LED lamp beads 61, the lens pressing block 66 is used for fixing the optical lens 64 on the heat dissipation plate 5, and the waterproof silica gel ring 65 is sleeved between the optical lens 64 and the lens pressing block 66. Adopt COB light source subassembly 6, the light source is more concentrated, makes the street lamp shine farther, even in the rain and fog weather, the illuminating effect is also very good, adapts to changeable outdoor environment.
In practical application's in-process, in order to prevent when raining that COB light source subassembly 6 internal line is intake, be provided with plunger installation through-hole and plunger 7 on heating panel 5, plunger 7 cover is established in plunger installation through-hole, is equipped with the through-hole in the plunger 7, and the power cord that communicates with power body 21 passes on plunger 7's through-hole is connected to LED lamp pearl 61, and waterproof nature is good.
Referring to fig. 3, the power module 2 is disposed in the housing and electrically connected to the COB light source module 6 and the controller 3. The power supply assembly 2 comprises a power supply body 21 and a mounting plate 22, wherein the mounting plate 22 comprises a plate body, a plurality of mounting grooves are formed in the plate body, and the power supply body 21 is mounted on the mounting grooves; the both sides edge of plate body is bent and is formed the fixed part, and the fixed part passes through bolted connection together with heating panel 5, fixes mounting panel 22 on heating panel 5, consequently, forms certain space between mounting panel 22 and the heating panel 5, makes power body 21 and heating panel 5 alternate setting, avoids the produced heat of power body 21 directly to transmit to heating panel 5 aggravate the heat dissipation work load of heating panel 5.
The controller 3 is fixed to the mounting groove of the mounting plate 22 and is arranged side by side with the power supply body 21. Power body 21 is COB light source subassembly 6 and the power supply of controller 3, and power body 21 and controller 3 are waterproof design.
In actual use, the controller 3 can be remotely controlled through software, the operation of opening and closing the street lamp and adjusting the output power of the street lamp according to requirements is completed, and time and labor are saved. The controller 3 is used for adjusting the output power of the street lamp according to the actual lighting requirement, adjusting the brightness of the street lamp, and saving energy and protecting environment.
Referring to fig. 2 and 3, in order to facilitate high-altitude installation and repair work, the bottom end of the cover body 1 is provided with the hoop 4 and the hoop installation through hole, the hoop 4 is arranged in the hoop installation through hole, one side of the hoop 4 is connected with the heat dissipation plate 5 through the bolt, the other side of the hoop is provided with the fixing through hole, the lamp post of the street lamp is inserted into the hoop 4, the jacking screw penetrates through the cover body 1 to be matched with the fixing through hole to fix the lamp post in the hoop 4, the installation of the street lamp can be completed, and the operation is simple and convenient. The mounting plate 22 is connected with the hoop 4 through a connecting angle iron, so that the stability of the whole structure of the street lamp is improved.
The street lamp with good heat dissipation comprises a cover body 1, a power supply assembly 2, a controller 3, a heat dissipation plate 5 and a COB light source assembly 6, wherein the heat dissipation plate 5 is provided with the heat dissipation fins 51, so that the heat dissipation performance of the heat dissipation plate 5 is greatly improved, the junction temperature of a chip of the COB light source is further reduced, and the service life of the street lamp is prolonged; in addition, the street lamp has the advantages of simple structure, low production cost, small and portable whole body and convenient transportation, storage and installation.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (10)
1. A heat dissipating plate, characterized in that: the radiating plate (5) is provided with a radiating fin (51), and the radiating fin (51) comprises a medium storage area (511), an evaporation area (512), a condensation area (513) and a reflux area (514);
the medium storage area (511) is used for storing a heat-conducting medium and enabling the heat-conducting medium to absorb heat and vaporize in the medium storage area (511), the evaporation area (512) is used for communicating the medium storage area (511) with the condensation area (513), the condensation area (513) is used for receiving the vaporized heat-conducting medium and condensing and liquefying the vaporized heat-conducting medium, and the backflow area (514) is used for receiving the liquefied heat-conducting medium and returning the liquefied heat-conducting medium to the medium storage area (511), so that the heat-conducting medium completes one large circulation in the heat radiating fins (51);
the cross-sectional structures of the heat-conducting medium flow areas of the medium storage area (511), the evaporation area (512), the condensation area (513) and the return area (514) are all net-shaped structures.
2. The heat dissipating plate of claim 1, wherein: at least one group of connecting channels (52) are arranged between the evaporation area (512) and the reflux area (514) from top to bottom, the heat-conducting medium vaporized in the evaporation area (512) enters the reflux area (514) through the connecting channels (52) to be condensed and liquefied, and then flows back to the medium storage area (511) so as to complete one-time medium-level circulation of the heat-conducting medium.
3. The heat dissipating plate of claim 2, wherein: each set of said connecting channels (52) being arranged horizontally or obliquely with one end near said recirculation zone (514) above the other end;
each group of the connecting channels (52) comprises a condensation channel (521) and an evaporation channel (522) positioned below the condensation channel (521), and the evaporation channels (522) of the upper group of the connecting channels (52) are communicated with the condensation channels (521) of the lower group of the connecting channels (52) to form a circulation branch, so that the heat-conducting medium completes a small circulation in the circulation branch.
4. The heat dissipating plate of claim 3, wherein: the clearance between the condensation channel (521) and the evaporation channel (522) of each group of the connecting channels (52) is smaller than the clearance between the evaporation channel (522) of the connecting channel (52) of the previous group and the condensation channel (521) of the connecting channel (52) of the next group.
5. The heat dissipating plate of claim 1, wherein: the medium storage area (511) is located at the bottom of the heat dissipation plate (5), the condensation area (513) is located at the top of the heat dissipation plate (5), the middle parts of the medium storage area (511) and the condensation area (513) are communicated through the evaporation area (512), and the two ends of the medium storage area (511) and the condensation area (513) are respectively communicated through the two reflux areas (514).
6. The heat dissipating plate of claim 1, wherein: the heat dissipation plate (5) is provided with two layers, and the heat dissipation fins (51) are arranged between the two layers of the heat dissipation plate (5).
7. The heat dissipating plate of claim 1, wherein: the front and the back of the heat dissipation plate (5) are both sprayed with graphite oil.
8. The utility model provides a street lamp that heat dissipation is good, includes lid (1), power supply module (2) and COB light source subassembly (6), its characterized in that: -further comprising a heat distribution plate (5) according to any of claims 1 to 7;
lid (1) is installed the back of heating panel (5), and both constitute the casing of street lamp, COB light source subassembly (6) set up the front of heating panel (5), power module (2) set up in the casing and with COB light source subassembly (6) electricity is connected.
9. The street lamp with good heat dissipation as set forth in claim 8, wherein: COB light source subassembly (6) set up in the bottom of heating panel (5), and with the heating panel (5) the position of medium storage area (511) corresponds.
10. The street lamp with good heat dissipation as set forth in claim 8, wherein: the cover body (1) is provided with a ventilating heat dissipation hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210027394.4A CN114294600A (en) | 2022-01-11 | 2022-01-11 | Heat dissipation plate and street lamp with good heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210027394.4A CN114294600A (en) | 2022-01-11 | 2022-01-11 | Heat dissipation plate and street lamp with good heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114294600A true CN114294600A (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210027394.4A Pending CN114294600A (en) | 2022-01-11 | 2022-01-11 | Heat dissipation plate and street lamp with good heat dissipation |
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| Country | Link |
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| CN (1) | CN114294600A (en) |
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| CN205580271U (en) * | 2016-04-21 | 2016-09-14 | 广州华钻电子科技有限公司 | Gas -liquid separation formula temperature -uniforming plate |
| CN110736056A (en) * | 2019-11-28 | 2020-01-31 | 深圳市嘉名科技有限公司 | LED light source heat dissipation device and LED street lamp |
| TWI699505B (en) * | 2019-04-10 | 2020-07-21 | 嘉龍國際股份有限公司 | Remote heat dissipation module with micro flow channel |
| CN213214200U (en) * | 2020-10-21 | 2021-05-14 | 无锡中石库洛杰科技有限公司 | Heat radiation module |
| CN112930091A (en) * | 2021-02-09 | 2021-06-08 | 联想(北京)有限公司 | Heat radiation structure and electronic equipment |
| CN218720800U (en) * | 2022-01-11 | 2023-03-24 | 深圳市世迦科技有限公司 | Street lamp with good heat dissipation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW472918U (en) * | 2000-08-21 | 2002-01-11 | Compal Electronics Inc | Cooler device for notebook |
| CN205580271U (en) * | 2016-04-21 | 2016-09-14 | 广州华钻电子科技有限公司 | Gas -liquid separation formula temperature -uniforming plate |
| TWI699505B (en) * | 2019-04-10 | 2020-07-21 | 嘉龍國際股份有限公司 | Remote heat dissipation module with micro flow channel |
| CN110736056A (en) * | 2019-11-28 | 2020-01-31 | 深圳市嘉名科技有限公司 | LED light source heat dissipation device and LED street lamp |
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Address after: Room C1106, Yinxing Technology Building, No. 1301 Guanguang Road, Xinlan Community, Guanlan Street, Longhua District, Shenzhen, Guangdong 518000 Applicant after: Shenzhen Shijia Technology Co.,Ltd. Address before: 518000 401, building 1, Watex Science Park, Dayi village, dashuikeng community, Fucheng street, Longhua District, Shenzhen, Guangdong Applicant before: SHENZHEN CHUANGJIA LIGHTING Co.,Ltd. |